Brocade Fibre Channel Networking Community

Expand all | Collapse all


Jump to Best Answer
  • 1.  fec_uncor_detected

    Posted 10-02-2017 03:48 AM



    On a SN8600B i see a lot of errors of the type fec_uncor_detected

    There are no CRC errors, nor any other physically layers errors logged


              frames      enc    crc    crc    too    too    bad    enc   disc   link   loss   loss   frjt   fbsy  c3timeout    pcs    uncor

           tx     rx      in    err    g_eof  shrt   long   eof     out   c3    fail    sync   sig                  tx    rx     err    err

    306:  267.4k 156.0k   0      0      0      0      0      0      0      1      2.4k   1.2k   0      0      0      0      0      0     44.8k



    fec_cor_detected     17790               Count of blocks that were corrected by FEC

    fec_uncor_detected   44860               Count of blocks that were left uncorrected by FEC



    What could be the cause of the increase of this error ?


  • 2.  Re: fec_uncor_detected
    Best Answer

    Posted 10-02-2017 05:01 AM

    hi Thomas,


    can you check the bad_os counter in the portstasshow for the same port?  You do not have any PCS errors, so it leave the bad_os. Further, this link is not stable or good - you have 2400 link failure and 1200 synchronization loss.  Physical layers, cable or SFPs.